Home / 8,191.18-12,287.57-3,259.67

Finding the Fourth Proportional to 8,191.18, 12,287.57 and 3,259.67

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Solution

The fourth proportional to 8,191.18, 12,287.57 and 3,259.67 is: 4,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.18 : 12,287.57 = 3,259.67 : x
  2. Step 2: Convert to fraction form
    8,191.18/12,287.57 = 3,259.67/x
  3. Step 3: Cross multiply
    8,191.18x = 12,287.57 × 3,259.67
  4. Step 4: Simplify right side
    8,191.18x = 40,053,345.57
  5. Step 5: Solve for x
    x = 40,053,345.57/8,191.18
  6. Step 6: Final answer
    x = 4,889.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.